Yamaha YZF-R6 Service Manual page 81

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ADJUSTING THE VALVE CLEARANCE

S valve clearance

Out of specification ! Adjust

Valve clearance (cold)

Intake valve

0.11 X 0.20 mm

Exhaust valve

0.21 X 0.30 mm

a. Turn the crankshaft clockwise.

b. When piston #1 is at TDC on the compres-

sion stroke, align the TDC mark a on the

pickup coil rotor with the crankcase mating

TDC on the compression stroke can be found

when the camshaft lobes are turned away from

c. Measure the valve clearance with a thick-

ness gauge 1 .

S If the valve clearance is incorrect, record the

measured reading.

S Measure the valve clearance in the following

Valve clearance measuring sequence

Cylinder #1 ! #2 ! #4 ! #3

d. To measure the valve clearances of the other

cylinders, starting with cylinder #1 at TDC,

turn the crankshaft counterclockwise as spe-

cified in the following table.

B Degrees that the crankshaft is turned counter-

D Combustion cycle

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